Welcome to visit and join with us, OU'SUN solar will be your good partner! Welcome to Our Site We Design, Manufacture and deliver the sun's unlimited and cheapest energy to your daily life. OU'SUN Solar Energy Technology Co., Ltd are a recognized manufacturer of high quality solar water heater in China since 2000. It is located in the middle of Shanghai and Hangzhou city (haining), only 1,5 hours from Shanghai and Hangzhou airport with convenient traffic. Our company covers an area of ...